package org.csmzxy.class2333;
class BankAccount2 {
    private String accountNumber;
    private double balance;
    public void setAccountNumber(String accuntNumber){
        this.accountNumber= accuntNumber;
    }
    public String getAccountNumber(){
        return  accountNumber;
    }
    public  void setBalance(double balance){
        if(balance < 0){
            System.out.println("输入金额有误！");
        }else{
            this.balance = balance;
        }
    }
    public double getBalance(){
        return  balance;
    }
    public  void broadcast (String accountNumber,double balance){
        System.out.println("账户"+accountNumber+"的余额为"+balance+"元");
    }
}

public class Example04 {
    public  static void main(String[] args){
        BankAccount2 account = new BankAccount2();
        account.setAccountNumber("123456");
        account.setBalance(-500);
        account.broadcast(account.getAccountNumber(),
        account.getBalance());
    }
}
